Suction-nozzle.



PATENTBD MAR. lol-'1908.

C.. W. E. BOEGEL. SUCTION NOZ UB. APPLICATION FILED 001228, 1907.

z snBsTswHEBT 1.

Wznesses:

No. 881,879. PATENTBD MAR. 1o, 1808.

' C. W. 8. BUEGEL.

- SUOTION NOZZLE.

APPLICATION FILED 001228, 1907.

2 SHEETS-SHEET 2.

Witnesses:

.vrnnr onirica.

CARL W. E. BUEGEL, OF LIMA, OHIO.

SUCTION-NOZZLE.

Specification of Letters Patent.

Patented March `1.0, 1908.

Application filed October 28, '1. Serial No. 399,419.

T o all whom l'it Ymay concern: l

Be it known that l, CARL W. E. Bonora., a citizen of the United States, residinv at Lima, inthe county 'of Allen and State of hio, have invented certain new and useful lunnovements in `Suctioil-Nozzles, ot which the iollowing is a specification.

My invention relates to carpet cleaning apparatus, the object being to render the operation of the apparatus uni formly eilicient, regardless of the nature oi the'surface being operated uplon, as4 well vas to admit oli' operation upon vertical surfaces and in corners with the greatest facility.

My invention consists in a/casing having means for suitably connecting it to a suction or vacuum producing apparatus and provided with anelongated opening, longitudinally of which extends a slotted tube adapted to form the means of connnunication between the interior of the casing andthe atmosphere, independently of the elongated opening, `said tube being provided with a reliel valve adapted to be. automatieally operated by the pressure of the atmosphere.

M y invention also consists in the parts and in the details oi arrangement and construction otparts `as will hereinafter be more fully describedy and claimed.

In the drawing'sf-WFigure 1 is a rear elevation of a device embodying my invention. Fig. 2 is a side elevation of saine. Fig. 3 is a section on` the line of Fig. l. Fig.' 4 is a bottom, )lan view ot the device. Fig. 5 is a sectional `view oi part of the device, more clearly illustrating the valve mechanism. F ig. 6 is a detail perspective view of the slotted tube. Figs. 7 and 8 are detail perspective views ol' the closed plug and the open plug, respectively. Fig. 9 is-`a sectional view of part of the device, illustrating its operation on material ol' open texture. Fig. 10 is a siniilarview illustrating 'the operation oi' the device on a solid closed surface. Fi 11 is aview illustrating the adaptability 'o the device for working close to the wall under a )rejecting `base-bcard ea i. Fig. 12 is a'view illustrating the adaptability of the device for cleaning euvel-tical surfaces. 1 V i Asi prefer to construetmy invention, the casing 1 is of elongated lower formation, tapering to a cil-cularjnipile 2 whichis`provided with serewthreais1B`,`-adapting it lor connection with a suitable conducting pipe 4, as shown in Figs. 11 `and 12, Whercl-)y itimay counnunicatewith a suction or vacuum pro ducing apparatus not herein shown or described sinee it does not coiistitute part of my invention. As will be noted, the general direction ol the lower elongated part of the casing is atan angle to the direction of the. nipple 2, this angle better adapting the devicafor use in corners and on verticalsull-l faces, while the elongation of the lower part is such that a comparatively long and narrow ipening 5 may be employed in the lower device for working closely into the corners.

As the o enness of texture of the material the available opening for the inlet of air to vary when the easing is maintained in close contact with the material being operated upon.- In order to maintain Y'a practically uniform inflow of air to the casing, and consequently a practically uniform el'licienc of operation, I provide the tube 6 exten ing longitudinally of the elongated opening 5 and in the middle thereof. `This tube ,6 is preferably secured in the easing at 'one end Jv screwing This tube 6 has internal threads 9 As shown, the device is provided with only one automatic valve, and the threads, 9 receive the closed plug 11. Vithin the tube 6, and abutting against the closed plug- 11 with one of its ends, is the spiral s ring 12. This spiral spring 12 bears at its otiiier end against a ball 13 of slightly lessfdiameter than the interior of the tube, and this'ball 13 is pressed by the s iral spring 12 against the open plug 14, wiich is received by the internal threads 10 of the tnbe.` The ball 13 thus forms the gate for the relief valve. The closed plug 9 and the open plug 10 are provid'ed withslots 15 and 16, respectively, to facilitate screwing them in position.` The lower side of the, tube 6 is provided withthe longitudinal slot 17 extending substantially the lull length of the elongated opening 5.

The length of the spiral springe yis so `proportioned. that when the device is `operating upon a surface .of suilicicntly o en texture to iwconnnodate the full inflow o air incident to the vacuum produced in the easing 1, the

the tube in position.

ner end ol" thc open plug ll), which inner end forms a seat lor the valve. llowever as upon whic the device is operating varies', Y

means of screw threads 7 and is provided at its other end with a slot 8 for facilitating.

and 10 at the onda` side of the easing, thus further adapting the the casing through the lnateriiF will also' ball 13 will be pressed tightlyagainst the in.-

soon as the device begins to operate on a gufl face of insufficiently open texture to accom- Amodate the inflow of air required, the ball 13 will be pressed inward against the pressure of the spiral spring 6 by the atmosphere, this inward movement of the ball-13abeing proportionate to the deficiency of inflow through 15' of 'the tubel G as a result of the vacuum produced in .the upper part of the casing 1. This is best illustrated in Fig. 9 of the drawings. Thetube 9 is placed a sufficient distance above the lower edges .of the elongated opening 5 to avoid interference with the rising of the nap of the material being cleaned,

` as is best illustrated in Fig. 10 of the drawings.

As will be readily understood, when so desired, relief valves may be provided at both ends of the tube 6 by merely inserting a duplicate of the ball 13, and substituting a duplicate of the open plug 14 for the closed plug 11, the threads 9 and 1() being alike, so

that the open and closed plugs may be interchanged at will. The device, thus constructed, automatically adapts itself to any surface upon which it may be re uired to op crate by allowing a substan-tia ly constant impingement of air against the fibers of the material either directly through the material when the material is of open texture, or partially through the material and artially against the upper fibers of the material when the texture is4 only moderatel f Close, or entirely against the up er sur ace when the material is entirely c osed against the passave of air. This constant'lflow of air not only renders the device more efficient, in

that it produces a constant removal of dust particles from the fibers of the material' or from the surface of the material, as the case may be, but in that it obviates the diflieulty caused by the nozzle clamping itself to the surface of the material when no automatic relief valve is provided. A certain velocity `of air through the outlet and discharge tubes is necessary in order to prevent clogging' of the dust articles, and it is desirable that this v,eloc1ty be substantiall constant. As

the. `device above describe allows of this substantial constant velocity, it will be seen that the clogging of the dust particles in the outlet v and discharge tubes is avoided.-

, e0 While he device is constructed and provided.

with t ie relief valve as above described, thus `rendering it more ellicient and more easily operated, regardless of the nature of the surfaces uponwhich it is being used. the compaetness of construction allowed bythe coinparatively long and' narrow tip-"ningl the absence of projecting parts on eil. tside of the nozzle and the formation oiy the device iu general leaving an unobstructed outer surface, permit of easy access to any corners or surfaces where it is desirable to use it. The, device is thus adapted for cleaning carpets, upholstered furniture, draperies, wall hangings and a variety of other articles requiring the removal of dust and impurities, thev cleansing being permitted without removing the articles from the positions in which they are used.

Vhile I have shown and described a device having the shape and having the relief valve in position for use under most conditions, l do not wish to be understood as limiting myself to it, but

What I claim4 as new and desire to `secure by Letters Patent is:

1. In a suction nozzle, a casing having an elongated opening therein, a slotted tube extending longitudinally of said elongated Opeliing and a valve in said slotted tube adapted to be automatically o cned by the pressure of the atmosphere, su stantially as and for the purposes specified.

2. 1n a suption nozzle, -a casing of elongated lower formation and ofl tapering up )er formation, adapted to communicate with a suction or vacuum producing apparatus, an opening extending longitudinally of the lower part of said casing, a tube extending longitudinally thereof, coincident with said opening, a valve seat near the end of said tube, and a spring controlled gate adapted to engage with said valve seat or be disengaged therefrom by the pressure of the atmosphere,

substantially as and for the purposes specified.I

3. In a suction nozzle, a casing, anopening in -said casing, a tube in said casing adapted to form communication between the interior of said casing and the atmosphere, independently of said opening, and an automatic relief valve in said tube, said opening being relatively long and narrow and said tube extendin r longitudinally of said opening, sub

stantia ly as and for the purposes speeilied. 4. In a suction nozzle a easing having an elongated lower part and a tapering upper part, the general'direetions of said upper and lower parts being inclined to each other, and said elongated lower part being provided with an opening extending longitudinally thereof, a slotted tu'be ektending longitudinally of saidv opening, andan automatic rclief valve in said tube, substantially as 'and for the purposes'specified.'I

5. ln a suction nozzle, a'casing having an elongated lower part and a tapering upper part, means for communication between said casing and asuction or vacuum, producing apparatus, an opening extendml longitudinally ofthe elongated lower part, a slotted tube extending longitudinally of said opening, an automatic relief valve in seid tube, `t-he tube being at some distance above the plane of seid opening, substantially as and for the purposes specified.

6. In a suction nozzle, a. easing, means for communication,between said casing and a suction or Vacuum produving apparatus, an opening in said easing for the inflow of air, n. .t ube coincident with said opening Aand adapted to form means for communication between the interior of said Casing and theatmospllere independently of said opening, and an automatic relief valve in said tube, substantially 'as and for the purposes specified.

7. ln suction nozzle, a easing having an elongated opening-ll tl'ierein, a slotted tube extending; longitudinallyv ol seid elongated opening; an open plug' secured in the end of said tube, whereby :i valve seat is formedQa bell in said tube of sligl'itly less diameter than that ol' the interior of snid tube, e, spiral spring.l in engagement with said ball, and means for conlining said spiral-spring, substantially as and for the purposes specified.

8. In e suction nozzle, a .easing of elongated lower formation and tapering upper formation, an elongated opening in the lower part of said easing, ay tubeextending longitudinally of said elongated opening, and a relief valve in said ltube, l'lie mechanism of which is Contained entirelyv within seid tube, whereby said casingl presents an unobstructed outer surface, substantiallyT and for the purposes specified.

CARL W. E. BQEGEL.

-VVitnessesz JOHN W. Roni', WARREN J. Mcliiwennisx. 

